The rapper says she will go to whatever lengths it takes to find out who did this.

Cardi B was the victim of a horrible prank when an anonymous tipster called Child Protective Services to her home alleging that she was abusing her three children.

Cardi hopped on Instagram Live to address the prankster early Tuesday (Oct. 22) from what appeared to be a hospital bed (she said she’s been hospitalized since Oct. 19) while vowing to get to the bottom of whoever attempted to mess with her family.

Billboard has reached out to reps for Cardi B and CPS. The Grammy-winning rapper and Offset are the parents to three kids — 6-year-old daughter Kulture, 3-year-old son Wave and a newborn daughter they welcomed in September.

“I swear to you I’m gonna get to the bottom of it. For you motherf—–s to do a little prank call with Child Protective Services to come to my gated mansion at 11 p.m. while my children are sleeping because there’s an anonymous call that my kids have been getting abused and beaten,” she said. “Are you f–king dumb? This is when the pranks start getting too far — when you a——s think it’s funny.”

She continued: “We’re the only people of color in my neighborhood completely and for motherf–kers to pop up in my house with cops and Child Protective Services because you motherf–kers want to do an anonymous call involving my children.”

Cardi also defended her spoiling her kids as she revealed she sends Kulture to a private school costing her and Set $45,000 in tuition fees each, while a nanny for their newborn comes with a $700 daily price tag.

“My kids live great,” she added. “My kids have never been touched, never gotten hit, no matter how annoying they are. I never hit my kids. We take very great care of our kids. Don’t you ever in your f–king life play with my motherhood or my ex-husband’s fatherhood.”

Cardi promised to get to the bottom of it, saying she’ll be reaching out to her lawyer along with a pair of private investigators. She also threatened litigation against CPS as well as “sue the person that did this anonymous call.” She added that the individual will be dealt with by herself and sister Hennessy if it happens to be a woman, or Offset will be involved if it ends up being a male who made the call to CPS.

“If you’re a boy, my baby father is gonna beat you the f–k up,” she said. “If you’re a woman, me and Hennessy are gonna beat you the f–k up because you playing with my motherf—–g kids.”

Watch the IG Live below.